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          Institute: MPI für Meteorologie     Collection: Ocean in the Earth System     Display Documents



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ID: 256391.0, MPI für Meteorologie / Ocean in the Earth System
Atlantic versus Indo-Pacific influence on Atlantic-European climate
Authors:Pohlmann, H.; Latif, M.
Language:English
Date of Publication (YYYY-MM-DD):2005-03-04
Title of Journal:Geophysical Research Letters
Journal Abbrev.:Geophys. Res. Lett.
Volume:32
Issue / Number:5
Sequence Number of Article:L05707
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:The influence of the Atlantic and Indo-Pacific oceans on Atlantic-European climate is investigated by analyzing ensemble integrations with the atmospheric general circulation model ECHAM4 forced by anomalous sea surface temperature and sea ice conditions restricted to the Atlantic (AOGA) and Indo-Pacific (I+POGA) oceans. The forcing from both the Indo-Pacific and Atlantic oceans are important for the generation of the sea level pressure (SLP) variability in the Atlantic region in the boreal winter season. Over the North Atlantic the SLP response in the I+POGA experiment projects on the North Atlantic Oscillation, while it projects on the East Atlantic Pattern in the AOGA experiment. In both experiments (I+POGA and AOGA) a quadrupole-type 500 hPa height anomaly pattern is simulated which emerges from the tropical Pacific and Atlantic oceans, respectively. In boreal summer the influence of the Atlantic Ocean dominates the SLP response in the Atlantic region. The tropical North Atlantic is a key region in forcing the SLP response over the Caribbean Sea in this season.
External Publication Status:published
Document Type:Article
Communicated by:Carola Kauhs
Affiliations:MPI für Meteorologie/Ocean in the Earth System
External Affiliations:Dalhousie Univ, Dept Oceanog, Halifax, NS B3H 4J1, Canada.; Leibniz Inst Meereswissensch, Kiel, Germany
Identifiers:ISI:000227548900003
ISSN:0094-8276
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